Table of content links do not correctly link to anchors on https://reports.jenkins.io/core-taglib/jelly-taglib-ref.html

E.g. the link target is https://reports.jenkins.io/core-taglib/jelly-taglib-ref.html#form:apply

But the actual anchor is form.3Aapply, i.e., https://reports.jenkins.io/core-taglib/jelly-taglib-ref.html#form.3Aapply 

Bisecting indicates this broke between 2.481 (working) and 2.482 (broken).

Related infra https://github.com/jenkins-infra/core-taglibs-report-generator/tree/master just runs the core site build and publishes the output.